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CVE-2026-115785

4.3 medium SSVC exploitation: none Published
NVD · CVE.org

An SMTP command injection vulnerability in the data-source testing functionality of Zimbra Collaboration Suite (ZCS) allows an ordinary authenticated user with account options enabled to inject CR/LF into the emailAddress inserted into an SMTP envelope command by a JSON SOAP request. After a successful preliminary POP3 or IMAP login, Zimbra sends the injected commands to the selected SMTP service. If that service accepts the pipelined transaction, the attacker can submit mail with attacker-selected recipients, headers and body content without victim interaction. The vulnerable command-construction path is present in ZCS 10.1.16 and 10.1.20.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 7

  1. StatusUndergoing Analysis → PublishedNVD modified 2026-10-24 03:55
  2. StatusPublished → Undergoing AnalysisNVD modified 2026-10-24 04:18
  3. StatusAwaiting Analysis → PublishedNVD modified 2026-10-23 13:50
  4. StatusPublished → Awaiting AnalysisNVD modified 2026-10-23 16:44
  5. StatusReceived → PublishedNVD modified 2026-10-23 13:50
  6. StatusPublished → ReceivedNVD modified 2026-10-23 14:17
  7. First seenCVSS 4.3 · zimbraNVD modified 2026-10-23 13:50

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 2